Messier Objects
I highly recommend a book on Charles Messier and the creation of this catalogue - Atlas of Messier Objects, 2008 by Ronald Stoyan.
Note: This gallery should be automatically sorted by Messier #.
Messier M25 IC4725 Open Cluster in Sagittarius - 30/10/2021 (Processed stack)
Imaged in suburban Leeming to test improved collimation.
DeepSkyStacker 4.2.6 Stacked (19) of 25 Images Gain 100 @ 25 Sec, 35 DARK Gain 100 @ 60 Sec, 32 BIAS Gain 100 @ 1/1000 Sec, 0 FLATS, Post-processed with Adobe Photoshop CC 2021 with Astroflat and Noise Ninja
Telescope - PowerNewt 200mm f/4 with Baader MPCC Coma Corrector (at 55mm backfocus) for F=800mm f/4.0, IDAS LPS-P2 filter, QHY 268C CMOS camera field 68' x 101' , Ambient ~14C, Camera 0C. EQMOD EQASCOM with Ascom 6.5 for mount control. Astro Photography Tool 3.88 for Image acquisition. Mount - Skywatcher NEQ6 Pro. Guidescope - Orion ShortTube 80 with Starlight Xpress SuperStar (Mono) CCD Auto Guider and Open PHD Guiding PHD2 auto guiding software.
CollinderCR382 M25 Open Cluster in SagittariusICIC4725 M25 Open Cluster in SagittariusMessierM25 Open Cluster in SagittariusOpen Cluster
